Abstracts Book - IMRC 2018

AFM imaging of the plasma-treated UNCD films revealed no significant change
in the surface roughness after either O2 or CF4 treatments when they were
compared with the surface of the as-grown UNCD films. Nevertheless, a surfacechemistry
alteration was confirmed by XPS, which is directly responsible for the
change in the wettability behavior. On the other hand, a small increase of the
WCA was observed as function of grain size UNCD to MCD films. This effect
provided the bases for exploring an additional process to increase even further
the hydrophobicity of polycrystalline diamond film surfaces. Thus, subsequent
research discussed in this abstract, revealed that the synergistic complementary
effect of 3-D structured + plasma-induced fluorinated surface termination of
UNCD, NCD and MCD films resulted in super-hydrophobic surfaces that
revealed WCA up to 172Ëš, thus producing the highest super-hydrophobic
surface of diamond material demonstrated today.
Acknowledgment:
O. Auciello acknowledges funding his Distinguished Endowed Chair of
University of Texas Dallas
E. de Obaldia acknowledges suport Universidad Tecnológica de Panamá,
Panamá, República de Panamá.
G. Montaño and P. Tirado acknowledge schoarlship support CONACYT-México
Keywords: hydrophilic, hydrophobic, polycrystalline diamond surfaces
Presenting authors email: gabrielamf@gmail.com